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Table 4-3. analog input (ani) module – Micromod Micro-DCI: 53IT5100B Micro-DCI 4-Channel Indicator Totalizer User Manual

Page 35

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53IT5100B Indicator/Totalizer

INSTRUCTION MANUAL

31

Table 4-3. Analog Input (ANI) Module

Purpose: This module is used to configure input voltage characteristics (e.g., input voltage range), and how the
input signals are interpreted (linear or square root representation).
Title

Symbol

ANI

Datapoint

Default

Attribute

Analog
Input
(Display
Only)

ANI0
ANI1
ANI2
ANI3

ANI0
ANI1
ANI2
ANI3

H000
H001
H002
H003

0
0
0
0

This is the value in engineering units of the
measured input after all signal conditioning
has been applied.

Engineering
Span

SPAN0
SPAN1
SPAN2
SPAN3

ANI0
ANI1
ANI2
ANI3

C256
C257
C258
C259

100
100
100
100

This determines the upper range the analog
input represents in engineering units. The
upper range value equals Engineering Zero
plus Engineering Span.

Engineering
Zero

ZERO0
ZERO1
ZERO2
ZERO3

ANI0
ANI1
ANI2
ANI3

C276
C277
C278
C279

0
0
0
0

This is the lower range value.

Digital Filter
Index

DFILT0
DFILT1
DFILT2
DFILT3

ANI0
ANI1
ANI2
ANI3

B269
B270
B271
B272

3
3
3
3

This controls a first order filter that is applied
to the input signal. The time constant is
entered as an index value as follows:

0 -No Smoothing (no effect)

1 -0.05 s

2 - 0.1 s
3 - 0.3 s
4 - 0.7 s
5 - 1.5 s

6 - 3.1 s
7 - 6.3 s

8 -12.7 s
9 -25.5 s

10 -51.1 s

11 - 102 s
12 - 205 s
13 - 410 s
14 - 819 s

15 -1638 s

0 - 5 V Input

NOBIAS0
NOBIAS1
NOBIAS2
NOBIAS3

ANI0
ANI1
ANI2
ANI3

L416
L417
L418
L419

0
0
0
0

Setting this parameter to 1 indicates the input
range is from 0 -5 volts (0 -20 mA). 0
indicates the input range is from 1 -5 volts (4 -
20 mA).

Square
Root
Signal

SQRT0
SQRT1
SQRT2
SQRT3

ANI0
ANI1
ANI2
ANI3

L440
L441
L442
L443

0
0
0
0

When a 0, it indicates the analog input signal
should be interpreted linearly.
When 1, it indicates the analog input signal
should be interpreted as a square root
representation of the value. When square root is
selected, input signals less than 1% (10% input
range) forces the input to its zero value.

Calibrate
Zero

CIZ0
CIZ1
CIZ2
CIZ3

ANI0
ANI1
ANI2
ANI3

B263
B264
B265
B266

This is the calibration zero adjustment. This
parameter is factory set and should not need
adjustment
under normal operation.
See Section 5.3 for adjustment.

Calibrate
Span

CIS0
CIS1
CIS2
CIS3

ANI0
ANI1
ANI2
ANI3

C296
C297
C298
C299

This is the calibration span adjustment. This
parameter is factory set and should not
need adjustment
under normal operation.
See Section 5.3 for adjustment.

Tag Name

AITAG0
AITAG1
AITAG2
AITAG3

ANI0
ANI1
ANI2
ANI3

A224
A225
A226
A227

ANI-0
ANI-1
ANI-2
ANI-3

an assignable 10 character name for the analog
input (ANI-0, ANI-1, ANI-2, ANI-3).

Engineering
Units

AIEU0
AIEU1
AIEU2
AIEU3

ANI0
ANI1
ANI2
ANI3

A298
A299
A300
A301

PERCENT

(ALL)

assignable for units of measure the ANI
represents (e.g., GPM for gallons/minute).